Combined boiler



' (N'oModL) A C. LOCKWOOD'. UQMBINED BOILER, FIRE REGULATOR, AND ALARM. N0.-2 91;064. Patented Jan. 1, 1884.

WITNESSES: A INVBNTOR:

4g fig mg I BY wym' ATTORNEYS- N. PETERS PgMo-Linw u mn Wnhinghn. DJ;

f v UNITED STATES PA ENT OFFICE,

.CHARLES STEWART LOOKVVOOD, OF NEVVBURG, NE\V YORK.

- COMBINED BOILER, FIRE-REGULATOR, AND ALARM.

SPECIFICATION forming part of Letters Patent No. 291,064, dated January 1, 1884. Application filed February 21,1883. (No model.) i I To all whom it may concern: Y

Be it kn own that I, CHARLES S. LOCKWOOD, of Newburg, in the county of Orange and State of New York, have inventeda new and Improved Combined Boiler, Fire-Regulator, and Alarm, of which the following is a full, clear, and exact description.

My invention relates to apparatus for use in connection with cook-stoves or ranges, and is intended to economize time and labor in common kitchen duties.

The invention consists in an arrangement of a vessel by suspension from a spring device over a stove-top in a manner to cause the evaporation by boiling of the liquid in the vessel to permit the withdrawal of the vessel by the spring from the open boiler-hole of the stove sufficiently to permit entrance of aircurrents to check and regulate the fire, and at the same time sound an alarm to notify or awaken the occupants of the house, all as hereinafter fully described.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 represents my improvements as applied to use and in perspective view. Fig. 2 is an enlarged sectional elevation of the same, the vessel being lifted from the stove-top for regulation of the fire and sounding of the alarm; and Fig. 8 is an elevation of the lower portion of the suspension-rod and spring-holding case, on a still larger scale. Fig. 4 is a modification, wherein a fiat spring is used.

My invention is more particularly adapted for use in connection with any approved devices for automatically lighting or starting the fire in a cook-stove or rangein the earlymorning; but such devices are not herein shown or described, as they form no part of my present invention; but when they are employed the working of my improved apparatus will permit the usual preparation of the morningmeal while allowing the kitchen-workers to sleep or rest longer than usual, and when such automatically-acting fire-lighting devices are not employed my improvements serve to facilitate the early-morning work with the least possible exposure of the person to extreme changes of temperature, so damaging to health.

to rise by its contraction.

none of its weight upon the stove.

In carrying out my invention, and as herein illustrated, A represents an ordinary cook stove or range, in which the fire is to be built in the evening, and ready tobelighted or started in the morning, either automatically or by application of a match by hand, the ordinary drafts of the stove to be left open, and one of its lids to be removed from over the fire-pot or grate, leaving an opening, a, over which I suspend a vessel, B, by a hook, rod,or wire, 0, to which is suitably connected a spring, D, in a manner to permit the vessel and contents to be freely supported by the spring, to descend by the expansion of the spring and In this example I connect the upper end of the coil-spring'D here employed to a hollow screw-shaft or rod, E, which passes freely through the eye of a bracket, F, fixed to the wall or other support, G, suitably for holding the vessel B directly over the boiler-hole of the stove, as shown, and on the hollow screw-shaft is fitted by internal threads the-nut H, which rests'over and upon the eye of the bracket F, for support of vessel B from nut H, and the bracket by the shaft E and spring D, the shaft being verti- 'cally adjustable by the nut to balance the spring-supported vessel B and the water to be boiled therein, so that the vessel shall just close the open boiler-hole a, but rest little or A wire or cord, I, is connected to rod 0, passes upward through the spring I) and hollow screwsh'aft E over an anti-friction pulley or roller, 6, suit- '85 ably journaled on shaft E, and connects to the hammer-actuating mechanism of any approved gong-bell or other alarm apparatus, J sup ported in proper relation'to suspended vessel B, and arranged to cause the lifting of thevessel by the spring on partial evaporation of the vessels contents to release the hammeractuating mechanism and sound the alarm.

As thus far described, my device is fully operative; but for better appearance I inclose the rod spring, and cord, 0 D I, below the bracket F, in a casing,K, preferably of round cross-sectional form, and I utilize this case in connection with the spring therein as a scale for weighing the vessel B, and indicating also the quantity of liquid therein contained, by fixing to rod 0 the scale pointer or index 0, which may be suitably arranged not to interfere with the free action of spring D, and works IOO in a slot, 7., of the casing K, which is graduated suitably at one side of the slot for the head of the pointer c to indicate the weight, and at the other side of the slot to measure the liquid contents of the vessel, and this scale may also be used in a general way for weighing any other articles desired.

The operation of my improved apparatus is as follows: Upon lighting the fire in stove A, the grate-drafts of the stove being open, and the vessel B balanced by the spring support to just close the boiler-hole a, as above described, the gradually increasing heat of the lire immediately below vessel B will soon cause its contents to boil and evaporate,and consequently lighten the vessel sufficiently to permit it to be lifted by the spring from the boiler-hole, as in Fig. 2, leaving an opening, I), thereat, through which warm aircurrents will be drawn from a point directly over the fire to counteract the draft from below the grate, and thus automatically act to check and regulate the fire and promote economy of fuel, and the lifting of the vessel permits withdrawal of cord I, and a sounding of the alarm to awaken the sleeper in case the fire has been lighted automatically, or to announce the boiling of the liquid in the vessel to one who has arisen to light the fire and returned again to rest awhile, and in either case the boiling of water for morning beverages is accomplished with little or no exposure of the person to extremes of temperature so damaging to the health of kitchen-workers, who may arise and finish the preparation of the morning meal in a comfortably-warmed apartment, and by the aid of a well-regulated fire, which may not only have been used to boil the wa ter 111 vessel B, but also to warm or cook substances placed in the ovens or on the top of the stove.

I do not limit myself to the special construction of the devices herein shown and de scribed, as a flat or elliptic spring may be used to support vessel B at the open stove-hole for regulating the fire, and the spring-support may be used to suspend the vessel over the closed stove-top to lift it only to prevent excessive evaporation of its contents, and the alarm J may be connected with the vessel or not at will; but I prefer to construct and combine the devices for useful co-operative effect, substantially as above described.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination, with a support arranged above a cook-stove or range, of a vessel suspended from said support by an elastic connection over the stove or range, substantially as herein shown and described, whereby the vessel will be raised by the evaporation of its contents, as set forth.

2. The combination, with a support, of a spring attached to the same, and a vessel adapted to be supported over ahole of a cooking-stove or range by said spring, substantially as herein shown and described, whereby the vessel will be raised by the evaporation of its contents and the fire correspondingly checked, as set forth.

3. The combination,with a support arranged above a cook-stove or range, of a spring at taehed to said support, a vessel attached to the lower end of the spring, and an alarm con nected to said spring, substantially as here in shown and described, whereby the vessel will be raised by the evaporation of its contents and an alarm sounded, as set forth.

4. The combination, with the stove A, of the vessel B, red 0, spring D, screw-shaft I nut- II, and bracket-support F, substantially as and for the purposes set forth.

5. The combination, with the stove A, of the vessel B, rod 0, spring D, shaft Il,nut H, bracket F, cord I, and alarm .I, substantially as shown and described.

6. The combination, with the stove and springsupported vessel B, of the cord I, connecting the vessel with the alarm J, said cord passing through the hollow screw-shaft E, substantially as shown and described.

7. The combination, with the stove A. springsupported vessel B, cord I, and alarm J, of the anti-friction-roller c, substantially as shown and described.

The com bination,with a support arranged above a cook-stove or range. of the rod 0, provided with the pointer c, the vessel B, the spring I), and the slotted tube K,surrounding the said rod and spring, substantially as herein shown and described, and for the purpose set forth.

CHARLES SllHi'All'l LOCKWOOD.

Witnesses: Janus MITCHELL, J. N. \Vrncn. 

